Computer, Mobile & Accessories
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Computer, Mobile & Accessories:
A Computer is a machine that uses electronics to input, process, store, and output data. Data is information such as numbers, words, and lists. The input of data means to read information from a keyboard, a storage device like a hard drive, or a sensor. The computer processes or changes the data by following the instructions in software programs. A computer program is a list of instructions the computer has to perform. Programs usually perform mathematical calculations, modify data, or move it around. The data is then saved in a storage device, shown on a display, or sent to another computer. Computers can be connected together to form a network such as an internet, allowing the computers to communicate with each other.
A Mobile phone, cellular phone, cell phone, cellphone, handphone, or handphone, sometimes shortened to simply a mobile, cell, or just phone, is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area. The radio frequency link establishes a connection to the switching systems of a mobile phone operator, which provides access to the public switched telephone network (PSTN). Modern mobile telephone services use a cellular network architecture and, therefore, mobile telephones are called cellular telephones or cell phones in North America. In addition to telephony, digital mobile phones (2G), (3G), (4G) & (5G) support a variety of other services, such as text messaging, MMS, email, Internet access, short-range wireless communications (infrared, Bluetooth), business applications, video games and digital photography. Mobile phones offering only those capabilities are known as feature phones; mobile phones which offer greatly advanced computing capabilities are referred to as smartphones.
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